Looped texture creation issue?

The code runs fine and dandy but only creates the a "Left" and "Bottom" texture for each part, not all faces. No idea whats causing this

local textures = {
	["http://www.roblox.com/asset/?id=288853368"] = Enum.NormalId.Top;
	["http://www.roblox.com/asset/?id=288853368"] = Enum.NormalId.Bottom;
	["http://www.roblox.com/asset/?id=288853365"] = Enum.NormalId.Front;
	["http://www.roblox.com/asset/?id=288853365"] = Enum.NormalId.Back;
	["http://www.roblox.com/asset/?id=288853365"] = Enum.NormalId.Right;
	["http://www.roblox.com/asset/?id=288853365"] = Enum.NormalId.Left;
};


function search(dir)
	for _, part in pairs(dir:GetChildren()) do
		if part:IsA("BasePart") and part.ClassName ~= "Terrain" then
			if part.Material == Enum.Material.Concrete then
				for id, enum in pairs(textures) do
					local tex = Instance.new("Texture", part);
					tex.Face = enum;
					tex.Texture = id;
					tex.StudsPerTileV = 8;
					tex.StudsPerTileU = 8;
				end
			end
		else
			search(part);
		end
	end
end

search(workspace);